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Finding the Fourth Proportional to 576,190.80, 864,286.20 and 519,110.10

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Solution

The fourth proportional to 576,190.80, 864,286.20 and 519,110.10 is: 778,665.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,190.80 : 864,286.20 = 519,110.10 : x
  2. Step 2: Convert to fraction form
    576,190.80/864,286.20 = 519,110.10/x
  3. Step 3: Cross multiply
    576,190.80x = 864,286.20 × 519,110.10
  4. Step 4: Simplify right side
    576,190.80x = 448,659,695,710.62
  5. Step 5: Solve for x
    x = 448,659,695,710.62/576,190.80
  6. Step 6: Final answer
    x = 778,665.15

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.